<?php return array (
  1 => 
  array (
    'username' => '453',
    'content' => 'rtrt',
    'create_time' => 1476343824,
  ),
  2 => 
  array (
    'username' => '3435',
    'content' => 'fgsgsg',
    'create_time' => 1476343830,
  ),
  3 => 
  array (
    'username' => '4536y',
    'content' => '2w52t2t24gg ',
    'create_time' => 1476343837,
  ),
  4 => 
  array (
    'username' => '23423',
    'content' => 'gfgg55',
    'create_time' => 1476344467,
  ),
  5 => 
  array (
    'username' => 'rer',
    'content' => 'efaea',
    'create_time' => 1476606046,
  ),
  6 => 
  array (
    'username' => '123',
    'content' => '今天下雨了！！',
    'create_time' => 1476860118,
  ),
) ?>